Bandersnatch follows a young computer programmer (Fionn Whitehead) who starts hearing voices as he constructs a vivid, fantasylike game. Will Poulter (The Maze Runner, The Revenant) plays an alternative programmer who encourages the newcomer to invite the voices in for use.

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"When it's a concept piece, a bit of madness is what you need," Poulter's character — who is as of yet unnamed — says.

It is not yet clear if Bandersnatch is Black Mirror's choose-your-own-adventure episode, a feature that Bloomberg announced in October would be eventually coming to Netflix. The video game factor of Bandersnatch suggests that it could, in fact, follow this structure. It is also not yet clear if Black Mirror season 5 is on its way to Netflix as well. Black Mirror is, as ever, purposefully confusing. We will know some info tomorrow, December 28, when Bandersnatch arrives on the site.